Method of impacting one metal upon another.



Patented Aug. I2, I902. S. H. THUBSTON.

METHOD OF IMPAOTING ONE METAL UPON ANOTHER. (Application filed Mat. 23, 1900.)

'(NOModel.)

WITNESSES INVENTOR- aw ke/M7704;-

UNITED STATES PATENT OFFICE.

JSAM'UEL IIEMAN THURSTON, or LONGBRANCH, NEW JERSEY.

METHOD oF IMPACTING ONE METAL UPON ANOTHER;

SPECIFICATION forming part of 7 Letters Patent No. 706,701, dated August 12, 1902.

i Application filed Harsh 23, 1900. Serial No. 9,881. (No specimens.)

To all whom it may concern! Be it known that I, SAM EL HEMAN Tnuns- TON, a citizen of the United States, and a resident of Longbranch, in the county of Monmouth and State of New Jersey, have invented a certain new and useful Method of Impacting One Metal upon Another, ofwhich the following is a specification.

. My invention relates to .a method for carrying out the process of coating one metal with another set out and claimed in my application filed December 8, 1898, No. 698,670; and it consists in certain elements and combina tions fully set out and claimed in this specification.

. In order that those skilled in the art to which my invention appertains may understand,-

construct, and use my invention, I will proceed to describe it, referring to the drawing herewith, in which the figure is a side elevation of an apparatus adapted to carry out my invention, a portion being broken away to show the internalstructure. 1

A is a nozzle. B isau air-pipe; G, a hopper. D is a chamber into which both the airsupply and metal particles enter from the airpipe B and hopper G.

E and G represent the metal particles being forced by the current of air under pres-- sure against a plate of metal H.

I am aware that various substances have been forced by air-pressure from suitable nozlzle against surfaces for various purposes and that such an operation is not broadly new;

but I am not aware that metal particles have ever been thrown upon or against a metal plate for the purpose of driving the said metal particles with such force as to cause them to be incorporated with the body of said metal andform a coating by impact or impingement. This I accomplish by means of metal particles driven by pneumatic pressure against the surface to be coated with such force as to embed the metal of the said particles in the surface of the metal against which they'are driven and incorporate the two togather,- thus forming a stable and eflicient metal coating of one metal upon another which is irremovable withoutremovingthe true.

metal of the plate or object thus coated. A stable, commercial, and eflicient product is formed by the means herein described.

The form of apparatus may of course be to a degree and its pores opened by the forceful impingement of said particles, and'immediately the metal from the said particles is impacted into and incorporatedwith the metal ofthe object being, coated in such a perfect manner that the two cannot be separated in any ordinary manner and a're practically permanent. That the particles are thus driven into the said pores of the object beiugcoated and become inherent therein is undoubtedly The metals I have so faremployed for this purpose are copper and aluminium as a coating upon iron and steel; but my invention is broad enough to include a vast number of other metals.

Having now fully described my invention and the manner in which I haveembodied it, what I claim as new and asmy invention, and desire to secure by Letters Patent, is-

The method of providing a ,metal'- article with a coating of another metal, which consists in forcing particles of the coating metal, by a blast of a gas, against the said article with such force as. to cause the particles to become embedded inthe surface of the'said SAMUEL HEMAN THURSTON.

Witnesses: 1 M. D. WHEELER THURSTON,

CHARLES .W. Low. 

